Since there aren't enough boxes for all of the different types, I usually just name a box, put in a background that would go well, and then stick in several similiar types. Such as Ghost, Dark, and Psychic. Grass and Bug are in one box, Ground and Fighting, etc. They're not really all the same, but they look alike so.. meh. >_> That's how I do it! I'm not really organized in real life, but in the games I am... It's strange.